Warp stop-motion.



E. H. RYON.

WARP STOP MOTION.

APPLICATION FILED DEC). 31, 1913 1,1 28,367.

Patented Feb. 16, 1915.

I 1? O i HI. NORRIS PETERS 50.. PHUTO'LITHO. WASHINGTON, D c.

EAS rare OFFlCE.

EPPA H. RYON, OF WALTHAM, MASSACHUSETTS, ASSIGNOR TO CROMPTON & KNOWLES LOOM WORKS, OF WORCESTER, MASsACI-IUSETTS, A CORPORATION OF MASSACHU- SETTS.

WARP STOP-MOTION.

Specification of Letters'latent.

Patented Feb.16, 1915.

Application filed December 31, 1913. Serial N 0. 809,677.

useful Warp Stop-Motion, of which the fol-i lowing is a specification.

This invention relates to a warp stop motion and particularly to improved means for locating a fallen drop wire in a warp stop motion.

In the class of stop motions to which my invention pertains each warp thread normally supports a drop wire in raised position, the breaking of the thread permitting the drop wire to fall and cause the stopping of the loom. A fallen drop wire is usually very inconspicuous, and an unreasonable amount of time may be consumed in locating the fallen wire and the broken warp thread. It is -therefore desirabl'e to provfile means for quickly locating the fallen wire and it is equally essential that the finding means shallnot interfere with any of the normal operations of theloom or with the drawing and handling of the warp.

Accordingly the principal object of my invention is to provide, in a warp stop motion, a drop wire finder easily operable to locate a fallen wire, but normally supported inan inoperative position where it cannot interfere with any of the usual. manipulations or movements of the drop wires.

Further'objects are to provide for simplicity of construction and cheapness of manufacture of such a device, the moving parts being reduced to the lowest possible number.

l/Vith these objects in view my invention relates to certain devices, arrangements, and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

A preferred form of my invention is shown in the drawings, in which Figure 1 is a side elevation of a portion of a warp stop motion with my invention embodied therein; Fig. 2 is atransverse sectional view taken along the line 2-2 in Fig. 1; Fig. 3 is an enlarged side elevation of a portion of my drop wire finder in inoperative position; Fig. 4 is a similar view showing the parts in operative position; and Figs. 5 and 6 are enlarged sections taken along the lines 5-5 and 66 respectively in Fig. 3.

I have shown my invention as applied to I a usual form of warp stop motion comprismg an end frame 10 supporting a plurality of transverse bars 11, the opposite ends of said bars being supported upon a similar end frame not shown in the drawings. The frames 10 are mounted for adjustment longitudinally of the warp upon supporting rods 12 and are provided in their lower portions with projections 13 having bearings within which is pivotally mounted a rock shaft 1 1 supporting a vibrating feeler bar 15. All of these parts are of the usual construction and form no part of my invention. For a fuller description thereof, reference is made to Letters Patent No. 988,387 granted April 4:,

1911 to John Regan.

Guide bars 16 are secured to the upper with a deep groove or recess in its upper edge, extending substantially the entire length of the bar, and the drop Wire finders 17 are mounted to slide within these recesses. Each finder consists of a straight bar having its upper edge provided with notches 18 and projections 19. At each end of the finder an upwardly projecting handle 20 is secured by rivets 21 or in any other desired manner.

The upper edges of the guide bars are cut away at 22 to provide clearance for the handles 20. A transverse pin'23 (Fig.5) is inserted near eachend of the guide bars 16 and each finder 17 is provided with a camslot 2 1 at each end through which extend the pins 23.

The normal position of the parts is shown is shown in Fig. 3 in the position to which it moves when a warp thread breaks. In order to locate this drop wire the operative will grasp the finder 17 by one of the han-' dles 20 and move the finder to the right as shown in Fig. 4. The cam slots 24 are so shaped that the initial movement of the finder to the ri ht also results in raising the notched edge of the finder above the upper edges of the guide 16. The finder being thus raised and continuing its movement to the right, the fallen Wire 25 Will be caught in one of the notches 18 and Will be forced to the right by the corresponding projection 19, thus causing a separation of the Warp threads Which immediately reveals the location of the fallen drop Wire. The broken thread being repaired, the finder 17 is again moved to the left, and returns to its normal depressed position.

From the preceding description it Will be evident that l have provided an exceedingly simple device comprising only a single moving part by Which to quickly and accurately locate a fallen drop Wire, and that I have also arranged this device in such a Way that in its normal position it is entirely out of the path of the drop Wires.

Having thus described my invention, it is evident that many changes and modifications can be made therein Without departing from the spirit and scope of the invention, and I do not Wish to be limited to the specific details herein disclosed, but

What I claim is 1. A Warp stop motion comprising drop Wires and a guide bar for said drop Wires formed With relatively movable members, one member only having notches on its upper edge, said notched member being normally located entirely below the upper edge of the other members and being manually movable to operative position above said members.

2. A Warp stop motion comprising drop Wires, a guide bar for said drop Wires, a drop \virc finder, and means for supporting said finder in operative relation to said bar and Wires, said finder being movable on its supports into and out of position to engage a fallen drop Wire.

3. A Warp stop motion comprising drop Wires, a guide bar for said drop Wires, a drop Wire finder mounted for longitudinal movement relative to said guide bar, and means to raise said finder relatively to said bar as the finder is moved longitudinally.

4:. A. Warp stop motion comprising drop Wires, a guide bar for said drop Wires having a recess in its upper edge, a drop Wire finder mounted to move longitudinally in said recess, and means to raise said finder rela tively to said bar as the finder is moved longitudinally.

5. A Warp stop motion comprising drop Wires, a guide bar for said drop Wires, a drop Wire finder mounted for longitudinal movement relative to said guide bar, and means to vertically separate the upper edges of said finder and said bar as the finder is moved longitudinally, said finder having transverse notches in its upper edge.

6. A Warp stop motion comprising drop Wires, a guide bar for said drop Wires, a drop Wire finder mounted for longitudinal movement relative to said guide bar, and means to move said finder vertically from inoperative to operative position as the finder is moved longitudinally, said finder being entirely below the upper edge of said bar when in normal inoperative position.

7. A Warp stop motion comprising drop Wires, a guide bar for said drop Wires, a drop Wire finder manually movable longitudinally to find a fallen drop Wire, and means to raise the notched upper edge of the finder above the edge of the guide bar as the finder is moved longitudinally.

8. A Warp stop motion comprising drop Wires, a guide bar fogsaid drop Wires having a recess iii it s upper edge, a drop Wire finder mounted to move longitudinally in said recess, and means to raise said finder as it is moved longitudinally, said finder being normally located entirely below the upper edge of the guide bar.

9. In a Warp stop motion, a longitudinally grooved guide bar having a transverse guide pin near each end thereof, and a drop Wire finder mounted to slide in the groove of the bar and having cam slots cooperating with the guide pins to raise the finder at the beginning of its longitudinal movement.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing Witnesses.

EPPA H. RYON.

Witnesses Crrannns F. Hurcrirns, Ennns'r R. LLEWELLYN.

Copies; of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

